Integrated Algebra - June 2010


38 The diagram below shows a cumulative frequency histogram of the students’ test scores in
Ms. Wedow’s algebra class.

Determine the total number of students in the class.
Determine how many students scored higher than 70.
State which ten-point interval contains the median.
State which two ten-point intervals contain the same frequency.

39 On the set of axes below, solve the following system of equations graphically for all values of x and y.

y = -x2 - 4x + 12
y = -2x + 4

Click on image to enlarge

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